Buy Liner Lock for Mud pump Manufacturers, Products

The liner locking, also known as liner retainer or liner thread ring, is a precision engineered component installed in the fluid end of a mud pump. Threaded directly into the fluid module, it firmly secures the liner in place, ensuring accurate alignment with the piston and stable operation under high pressure.

This component is essential for maintaining the integrity and performance of the pump during continuous drilling operations. Its sophisticated design prevents liner movement or vibration, which could otherwise lead to premature wear or fluid leakage. This product also allows for easy removal and replacement of liners during maintenance, helping minimize downtime.

Product Description

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Product Specifications
Application Drilling mud pump fluid end
Working pressures 5000 PSI (35MPa), 7500PSI (51.7MPa)
Temperature rating -20°C to 120°C
Material 35CrMo (Equivalent to AISI 4135 or AISI 4140)
Service life 5000 hours ~ 10,000 hours or more, depending on the operating conditions and drilling conditions
Extended Life With proper maintenance and regular liner replacements, the liner lock thread body can last up to 15,000 hours
Third party witness and inspection Bureau Veritas (BV), CCS, ABS, SJS etc.
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Product Features
Forged 35CrMo alloy steel construction, precision heat-treated and machined to deliver exceptional strength, wear resistance, and corrosion protection.
Reliable liner retention under cyclic pressure, with metal-to-metal locking that secures the liner in the fluid cylinder.
Quick and safe maintenance, thread-in installation enables easy liner insertion or removal.
Simple structure allowing for quick liner replacement without disassembling the entire fluid end, reducing downtime.
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OEM Equivalent / Compatible Models

Manufactured in full accordance with original drawings and directly interchangeable with the following part numbers:

OEM Brand Pump Models Compatible Part Numbers
BOMCO F1300/F1600/ F1600L/F1600HL AH36001-05.18.00 / AH130101051500
BOMCO F2200HL AH220201051200
HONGHUA/HH F1300/F1600/ F1600L/F1600HL GH3161-05.17.00
EMSCO/Mud king FB1300/FB1600 6316-0367-00
IDECO T500/T800/T1000 551-405-05
IDECO T1300/T1600 551-105-03
National/LSNOV 7P50, 8P80, 9P100, 10P130, 12P160 1294165, 1291165, 1293165, 1290165, 1292165
National/LSNOV 10P130 / 12P160 (L shaped) 6495+6595 / 6476+6576

* All product names, trademarks, and part numbers are used for identification purposes only and are the property of their respective owners.

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Product Details Display
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Frequently Asked Questions
What material is used for the liner lock construction?
The liner locks are manufactured from forged 35CrMo alloy steel (equivalent to AISI 4135 or AISI 4140), which is precision heat-treated for maximum durability.
What is the maximum working pressure these components can handle?
They are designed to operate reliably at high pressures, specifically rated for 5000 PSI (35MPa) and 7500 PSI (51.7MPa).
Are these parts compatible with international mud pump brands?
Yes, our parts are fully compatible and interchangeable with major brands including BOMCO, HONGHUA, EMSCO, IDECO, and National/LSNOV.
What is the expected service life of the liner lock body?
The standard service life is between 5,000 to 10,000 hours. However, with proper maintenance and regular liner replacements, the body can last up to 15,000 hours.
Does the product come with quality inspection reports?
Yes, third-party witness and inspection reports are available from recognized authorities such as Bureau Veritas (BV), CCS, ABS, and SJS.
How does the thread-in design benefit maintenance?
The thread-in installation allows for quick and easy liner insertion or removal without disassembling the entire fluid end, significantly reducing downtime.

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